2004 RR tach - 600RR.net
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post #1 of 2 (permalink) Old 02-21-2019, 11:29 AM Thread Starter
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2004 RR tach

Hi Guys,

Brand new to the forum, so hi all.

My problem is that my rev needle has stopped working on my tach. It does it’s cycle when I start the bike then doesn’t work. Everything else is working. I’ve tested the voltage on the green/green yellow input and I had 11v iirc. Could it be the ECU or the tach itself? Any other things I can do do determine what the problem is?

Thanks
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post #2 of 2 (permalink) Old 02-26-2019, 09:35 AM
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I lifted this comment from another site


When you unplug the 9p connector from the tech there will be a Yellow/Green wire. Check for continuity from there to the spark unit connector (CDI) which is on on the right side of the tail section. Its the black box behind R/R.

If there is no continuity then your wiring is the problem. If there is then there is a problem with your tech.
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